Sewage treatment biological membrane carrier device based on soybean straw and application method of device

A technology of biofilm carrier and soybean straw, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, backflow water treatment, etc., and can solve problems such as poor mass transfer capacity, excess straw, and weak corrosion resistance

Active Publication Date: 2018-09-28
青岛哈工资源环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention aims to solve the serious environmental problems caused by a large surplus of agricultural straw, and the technical problems of poor biocompatibility, poor mass transfer capacity, small bio-attachment, and weak corrosion resistance of biological carrier materials in the water treatment biofilm method , and provide a biofilm carrier device for sewage treatment based on soybean straw and its use method

Method used

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  • Sewage treatment biological membrane carrier device based on soybean straw and application method of device
  • Sewage treatment biological membrane carrier device based on soybean straw and application method of device
  • Sewage treatment biological membrane carrier device based on soybean straw and application method of device

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specific Embodiment approach 1

[0058] Specific implementation mode 1: This implementation mode is a device for sewage treatment biofilm carrier based on soybean stalks, such as Figure 1-Figure 10 , specifically composed of a regulating tank 2, an inlet pump 3, a biochemical system 1 and a secondary sedimentation tank 7;

[0059] The water outlet of the regulating tank 2 is connected to the water inlet of the water inlet pump 3, the water outlet of the water inlet pump 3 is connected to the water inlet of the biochemical system 1, and the water outlet of the biochemical system 1 is connected to the water inlet of the secondary sedimentation tank 7;

[0060] The biochemical system 1 is a double-tank switching biofilm system or a single-tank switching biofilm system;

[0061] The two-tank switching biofilm system consists of the first biochemical tank 4, the second biochemical tank 5, the third biochemical tank 6, the first backflow pump 8, the second valve 10, the first valve 11, the first aeration fan 14. ...

specific Embodiment approach 2

[0078] Embodiment 2: This embodiment is the method of using the biofilm carrier device for sewage treatment based on soybean stalks in Embodiment 1. When the biochemical system 1 is a dual-tank switching biofilm system, the specific steps are as follows:

[0079] One, carrier film: inject tap water or clear water in the first biochemical pool 4, the second biochemical pool 5 and the third biochemical pool 6, so that the upper edge of the first biofilm carrier 9 in the three pools is higher than the water surface in the pool 20 0~80cm, soak for 24h~72h, start the first aeration fan 14 to start aeration, the volume ratio of the aeration volume per hour to the water in the biochemical pool is (15~20):1, to the three pools The secondary sedimentation tank sludge transported from abroad is added for inoculation. The inoculum amount of the secondary sedimentation tank sludge imported from abroad is 10% to 15% of the effective pool volume of a single biochemical tank, reducing the amo...

specific Embodiment approach 3

[0085] Embodiment 3: This embodiment is the method of using the biofilm carrier device for sewage treatment based on soybean stalks in Embodiment 1. When the biochemical system 1 is a single-tank switching biofilm system, the specific steps are as follows:

[0086] 1. Carrier membrane: Inject tap water or clean water into the pool body 21 so that the upper edge of the second biofilm carrier 26 in the pool is 0-80 cm lower than the water surface 23 in the pool, soak for 24h-72h, and start the second aeration Fan 29 starts aeration, opens all the 4th gas flow regulating valves 24, and the volume ratio of the aeration volume per hour and the water in the biochemical pond is (15~20):1, adds the external transported in the pond Inoculate the sludge from the secondary settling tank. The inoculum amount of the sludge from the secondary settling tank imported from abroad is 10% to 15% of the effective tank volume of the biochemical tank. Reduce the amount of aeration and control the di...

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Abstract

The invention relates to a sewage treatment device and an application method thereof, and discloses a sewage treatment biological membrane carrier device based on soybean straw and an application method of the device. The device and the method aim to solve the technical problems that in the prior art, a lot of agricultural straw is left, and a biological carrier material in a water treatment biological membrane method is poor in biocompatibility, poor in mass transfer capacity, small in biological adhesion amount and weak in corrosion resistance. The device comprises an adjusting tank, a waterinlet pump, a biochemical system and a secondary sedimentation tank. The biochemical system is a double-tank switching type biological membrane system or a single-tank switching type biological membrane system; a biological membrane carrier is formed by a straw module. The application method of the device comprises the following steps of carrier biological membrane culturing and operation control. The COD removal efficiency reaches 85-95%, the denitrification efficiency reaches 70-85%, and the process has the advantages that sludge backflow is not needed and the amount of generated residual sludge is small.

Description

technical field [0001] The invention relates to a sewage treatment device and a using method thereof. Background technique [0002] my country is a big agricultural country, and the crop stalks are produced in a huge amount and widely distributed. Straw is not only an agricultural by-product, but also an agricultural resource, so it should be used rationally. The straw can be reasonably used and disposed of according to the characteristics of the straw type, plant characteristics, and maturity when growing and harvesting. At present, the utilization and disposal methods of straw in my country mainly include as fuel for daily life in rural households, as fuel for boilers, as feed for some livestock and poultry, gasification and cracking to produce gas, as raw material for papermaking, as raw material for forming composite boards, as extraction of certain beneficial components, and for agricultural use. Fertilizer and direct return to the field, etc. Among these utilization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/00
CPCC02F3/00C02F3/302C02F2301/04
Inventor 刘广民冯凯旋李嘉琪夏淑梅黄金郝东东马睿
Owner 青岛哈工资源环境技术有限公司
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